A wood block of mass (m) rests on a larger wood block of mass (M) that rests on a wooden table. The coefficients of static and kinetic friction between all surfaces are μs and μk , respectively. What is the minimum horizontal force, F, applied to the lower block that will cause it to slide out from under the upper block? Express your answer in terms of some or all of the variables m, M, μs, μk, and appropriate constants. I got answer F= μs (2M+m)g however its wrong and has to be in terms of μk. i dont know what i did wrong. thanks
